diff --git a/main.py b/main.py
index 9ea071c..98cd70c 100644
--- a/main.py
+++ b/main.py
@@ -33,6 +33,8 @@ import os
 import gzip
 import secrets
 
+MAX_CACHE_AGE = 60*60 # 1h
+
 class IotaFS_BlobStore():
     def __init__(self, api=None):
         if api==None:
@@ -255,8 +257,7 @@ class IotaFS():
         if sHash==b'':
             return [b'', 0, time.time()]
         print("/GET/ "+str(sHash)+" <- ")
-        if sHash in self.cache:
-            # TODO: maybe update if to old?
+        if sHash in self.cache and time.time()-self.cache[sHash][2] > MAX_CACHE_AGE:
             self.cache[sHash][2] = time.time()
             return self.cache[sHash]
         else:
@@ -369,14 +370,11 @@ class IotaFS_Fuse(LoggingMixIn, Operations):
             st['st_mtime']  = lastFetch
             st['st_ctime']  = 0
         else:
-            st['st_size']   = 1024*1024*1024 # 1 Byte lol
+            st['st_size']   = len(sHash) + len(path) + 8 # Just an approximation...
             st['st_atime']  = 0 #last access time in seconds
             st['st_mtime']  = 0 #last modified time in seconds
             st['st_ctime']  = 0 # very old file
-        # TODO: Actuall real value
-        # I think, when I put it like this, we executes copies as one write and not multiple (which would be stupid with my implementation)
-        block_size = 1024*1024*1024
-        st['st_blocks'] = (int) ((st['st_size'] + block_size-1) / block_size)
+        st['st_blocks'] = 1 # Until we can skip blocks when reading / writing this should provide best possible performance...
         return st
 
     def mkdir(self, path, mode):